Re: Migration to version 7.4
От | Bruce Momjian |
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Тема | Re: Migration to version 7.4 |
Дата | |
Msg-id | 200312011508.hB1F8tx11533@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Migration to version 7.4 (Nabil Sayegh <postgresql@e-trolley.de>) |
Ответы |
Re: Migration to version 7.4
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Список | pgsql-novice |
Nabil Sayegh wrote: > Hi all, > > congratulations to the new release, I couldn't try it yet, but the release > notes are promising. > > However there is one thing that needs a bit more explanation: > > 1) Inner joins using the explicit JOIN syntax may behave differently > because they are now better optimized. > > What exactly do you mean by 'may behave differently'? They will be fully optimized, so they might be faster. In pre-7.4, ANSI syntax restricted the choices researched by the optimizer. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073
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